Description
Replace worn or damaged locking components with this complete Ignition Switch Barrel and Lock Set for the Citroën C3 Picasso. Supplied under PSA Citroën Peugeot part number 4162SV, the kit is frequently searched by its product code and provides a straightforward, direct-fit solution for restoring vehicle security and ignition function.
This set includes the ignition lock cylinder (ignition switch barrel), the driver’s door lock mechanism and the fuel filler cap lock plus two matching keys. All parts are intended to integrate with the vehicle’s existing door and ignition assemblies, making it easy for professional technicians or competent DIYers to complete the repair.
The ignition lock cylinder controls key recognition and starter engagement, while the door and fuel cap locks protect against unauthorized access. Replacing these components restores reliable locking, prevents key breakage in the cylinder and eliminates intermittent ignition contact issues that can prevent engine start.
Common reasons to replace locks and the ignition barrel include key wear or breakage, tumblers or wafers becoming worn, corrosion in the cylinder, physical damage from forced entry attempts, and electrical contact wear in the ignition switch assembly. There is no fixed replacement interval; inspect and replace when you experience difficulty turning the key, loose key travel, or loss of keys.
Installation Overview
- Disconnect the negative battery terminal before beginning work to avoid short circuits or immobiliser faults.
- Remove steering column trim to access the ignition cylinder; for door locks remove the door card and inner handles as required.
- Release the locking pin or retaining clip and withdraw the old ignition cylinder, then install the new cylinder and secure it in place.
- Reinstall door lock components and the fuel filler cap lock, test key operation on all locks and verify ignition/starter function before reassembling trims.
Technical Information:
- Manufacturer: PSA Citroën Peugeot
- Model: Citroën C3 Picasso
- Product Codes: 4162SV
- Additional Numbers: N/A
Designed for direct compatibility with the Citroën C3 Picasso, this set is a practical replacement option for garages and DIY enthusiasts. The kit arrives ready to fit and includes two keys to restore full access and ignition control. When replacing locking components, always verify key alignment and immobiliser compatibility if applicable to your vehicle specification.







